Dealers quote leases as a "money factor." Here's the APR it really means — type in either box.
The conversion is exact: APR = money factor × 2400, and money factor = APR ÷ 2400. A money factor of .00250 equals a 6.0% APR. The 2400 already bakes in the lease interest convention — there's no term or balance involved in the rate itself.